Valve.



E. OMALLBY. VALVE.

APPLICATION FILED DEC.6,1909

Patented Dec. 20, 1910.

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- E. O'MALLEY.

VALVE.

APPLICATION BLED D150. 6, 1909 9*?8929 Patented De0.20,1910.

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EDXVARI) OMALLEY, 0F JACKSON, TENNESSEE, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO OMALLlY-IBEARE VALVE COMPANY, OF CHICAGO, ILLINOIS, A

CORPORATION 01? DELAKARE.

Patented Dec. 20, 19 0.

Application filed December 6, 1 09. Serial No. 531,599.

To all whom it may concern:

Be it known that I, linwann OMALLi-JY, a citizen of the United States,residing at Jackson, in the county of Madison and State of Tennessee,have invented new and useful l mprovements in Valves, of which thefollowing is a specification.

This invention relates to improvements in valves, and more particularlyto that type of valve designated as a reciprocating valve.

The object of this invention is to provide a reciprocating valve with aplurality of removable trued seat plates, together with a means forsecuring the seat plates upon the seat frame and compensating for theremoval of a damaged plate. 7

This invention can be applied to any form of valve, and is soconstructed that whenever one of the seat plates becomes damaged it maybe removed without the application of any special tool. Furthermore thecompen sating for the removal of the damaged plate upon the securingmeans does not alter the relation between any of the parts.

ll hile the preferred form of this invention is illustrated upon theaccompanying sheets of drawing. yet it is to be understood that minordetail changes may be made without departing from the scope thereof.

Figure 1 is a view in longitudinal section through a globe valve towhich one form of this invention has been applied. Fig. 2 is a view inlongitudinal section through a globe valve, with parts broken away,illustratinga modified form of this invention. Fig. 3 is a view inlongitudinal section through a globe valve, with parts broken away, towhich a modified form of this invention has been applied.

Fig. 1 illustrates the ordinary type of valve having an integral web orbridge supporting the valve seat. A removable seat frame 1 is supportedupon the bridge 2 and a plurality of removable trued seat plates 3 aresecured thereto. The exterior surface 4 of the seat frame is screwthreaded and is adapted to engage the screw threaded interior portion 5upon the bottom of a cage member 6. An inwardly extending projec-' tionor flange 7 is provided upon the inner surface of the cage member abovethe screw threaded portion which is adapted to engage the upper surfaceof the uppermost removable trued plate and secure the same in place uponthe seat f "nine. The cage member extends upward and is adapted to beengaged by the. valve cap 8 of usual construction engaging the upperportion of the valve casing. The lower portion of the valve cap isprovided with :1 depending circular flange 9 adapted to be receivedwithin the upper portion of the cage member. The upper portion of thecage member, a short distance below the upper end, is provided with aninternal projection or flange 10 adapted to be engaged by the dependingflange upon the valve cap, and this projection upon the interior of thecage member is of sutlicient width to support a removable trued plate 3thereon.

If desired an extra plate may be carried upon the upper-portion of thecage member at all times. but this is not necessary to the operation ofthis device. \Vhen one of the trued seat plates upon the seat frame hasbecome damaged it is only necessary to remove the valve cap, so that thecage, seat plate, and seat frame may be withdrawn from the casing. Theseat frame is then unscrewed which allows of the removal of all of thetrued plates carried thereon. The damaged upper plate is removed and theperfect plates replaced. the seat frame inserted within the cage untilthe upper seat plate is in engagement with the securing projection uponthe cage, and the cage, seat plates, and frame are returned to theiroriginal position. By the removal of the uppermost seat plate, the cagemember will necessarily descend a greater distance upon the frame andthe distance between the top of the valve cap and top of the cage memberwill be increased by the thickness of the plate removed. The damagedplate 3 is therefore placed upon the shoulder projecting from theuppermost portion of the cage member, and the valve cap replaced inengagement with the casing. By placing the damaged plate upon the upperportion of the casing, the removal thereof from its original positionupon the scat frame will be compensatcd for and the valve cap may besecured in exactly the same relation to the valve casing, and at thesame time secure the seat; frame.

Fig. 2 illustrates the application of this invention to a valve in whichthe seat plates are secured upon the underside of the bridge 2 and inthis form the under surface of the web is recessed. as illui-trated at11. and the upper surface forms a flange 12 extending inward and parially covering the uppermost seatplate. A plurality of removable truedseat plates 3 are placed in the recess and held in position in thefollowingmanner. The bottom all of the valve casing 13 provided with anopening or orifice ll of the same diameter as the recessed portion 11 ofthe web. The sides of this opening in the valve casing are screw thradedand adapted to receive the screw threaded portion of a cap or closure 16therefor. This cap or closure is provided with a circular flange 17extending upward and within the valve casing. A cage member 18 is placedbetween the removable seat plates and the projection upon the screwthreaded cap. In this form of valve seat it is preferable that theexterior edges of the removabl seat plates be at tached by a thin filmof solder to retain them together, but this is not necessary. The upperportion of the cage member supports and is in engagement with thelowermost. plate and is provided with an upstanding shoulder 19 upon theinner circumference adapted to engage the inner circumference of thelowermost seat plate. The lower portion of the cage member is providedwith a shoulder 20 adapted to engage the circular projection of thescrew threaded cap. This shoulder is of sutlicient width to receive andsupport an additional trued seat plate if desired.

When a seat plate has become damaged the cap closing the opening in thebottom of the valve casing is removed, which allows of the removal ofthe cage member and seat plates. The uppermost damaged seat plate isthen removed and the remaining perfect plates replaced within therecessed portion therefor upon the web. The cage is then placed inengagement with the lowermost. seat plate. By the removal of theuppermost seat plate. the cage member will lie advanced upward withinthe recessed portion of the web a short distance equal to the. distanceof the removed plate. To compensate for this changed rela tion betweenthe cage member and cap. the damaged seat plate 3 is placed upon theshoulder at the bottom of the cage member. The screw threaded cap isthen replaced upon the valve casing. and as the removal of the uppermostseat plate has been compensated for by the removed plate being placedupon the shoulder at the bottom of tie cage member, the screw threadedcap will engage the bottom of this seat plate, and the cap will assumethe same relation tc the alve casing as it occupied before the removalof the damaged plate.

Fig. 3 illustrates another form of securing a plurality of removableseat plates upon the underside of the web. In this case the side wallsof the recessed portion 11 of the web 2 are screw threaded and areadapted to receive the upper screw threaded portion .21 of a cage member22. .'\n aperture or opening 14 of the same diamete' as the recessedportion upon the miderside of the web is also provided at the bottom ofthe valve casing 13. but: in this case the side walls of this opening inthe bottom of the valve casing are notscrew threaded. The upper portionor the cage member 22 provided with an upstanding flange 23 engaging theinner circumference of the lowermost seat plate. and the cage membertapers downwz trdlv and terminates in an integral screw threaded portionll of less diameter than the opening in the bottom of the valve casing.and is provided at its lower extrenr it v with a tool engaging surface-A cap or closure i is provided with a centrally screw threaded opening'27 adapted to receive and engage the screw threaded portion it upon thelower part of the cge member.

llhen a seat plate becomes damaged. the cap closing the opening in thebottom of the valve casing. is removed. the cage member then removed byapplying a wrench or other tool to the tool engaging surface thereof.which will allow of the removal of the plurality of trued scatv plates.The damaged plate is removed from the others and the remaining perfectplates are replaced. The cage member is then inserted until the topthereof engages the lowermost seat plate. The cap closing the opening inthe bottom of the casing is then re tlaccd upon the screw threadedportion of the cage. memb'cr. is illustrated in Fig. i. the v the screwthreaded portion of the cage member is recessed to receive the facedtool engaging portion of the cage member. the cage member is screwthreaded a sullicient distance and the recess in the. cap is of sutlicient size to allow the cap to be advanced upon the cage member asullicient distance to compensate for the removal of one or more of thepluralitv of trued seat plates.

By this construction. the removal of a damaged seat plate does notchange the relation between the. removable cap and the valve casing. vetin each case the removable cap carried upon the valve casing secures thecage member in place and thereby at the same time retains the uppermosttrued seat plate in its proper position.

It is to be understood thatan v form of valve plunger or valve head maybe used in connection with the particular forms of removable valve seatsdisclosed herein, however. it is preferred to employ the valve headillustrated upon Fig. 1.

The head proper 30 is secured to the lower end of the spindle 30 passingthrough the valve cap 8 and is provided upon the underside with acentrally depending screw threaded projection 31. A plurality of capengaging trued head plates 32 corresponding in diameter with thediameter of the valve head and provided with central apertures toreceive the screw threaded projection 31 upon the under side of the headare placed thereover and are secured in place hy'a washer 33 of adian'ieter somewhat less than the inner diameter oi the valve seat. Theremovable head plates 32 and Washer 13;) are secured upon the head 30 bythe nut. 34; on the ex terior ot' the screw threaded projection 31.

ll'henever one of the head plates becomes damaged it may he readilyremoved and a new plate substituted therefor by removing the valve cap,locking nut and washer. When it not convenient to replace the damagedplate by a new plate and it is still desired to retain the same relationbetween the valve head and valve seat, all of the trued head plates maybe removed at the same time and the damaged plate replaced upon the headat the hack of the perfect head plates.

A scored or damaged valve head is just as objectionable as a eored ordanntged valve seat, as either will equallj; prevent the perlectoperation oi the valve. This invention not only provides for therepairing of a damaged valve seat but also provides, for the repairingof a damaged valve head and either or hoth may be quickly placed in perfeet operative condition without the use of special tools and at. thesame time the relation between the operating parts is not Changed in theleast.

hat I claim is:

1. In a valve, a valve casing, a plurality of removable trued seatplates, an o, ening provided in the valve casing for the insertion andremoval of the seat plates, a cap closing said openin a circularprojecting member upon the cap extending within the casing, a cagemember engaging the seat plates at one end, a portion of the oppositeend recessed to receive and supporta damaged seat; plate, and alsoreceive the projecting member upon the cap in engagement with thedamaged seat plate.

'2. In a valve, a valve casing, a plurality of removable trued seatplates, an opening provided 'in the valve casing for theinsertion andremoval of the seat plates, :1 cap closing said opening, a cageinterposed between the seat plates and cap provided with means toreceive and hold seat plates at each end thereof, said cap PIO'VlClQdwith a member coiiperating with the said means upon the adjacent end ofthe cage to retain one or more seat plates therehetween to compensatefor the removal of a seat plate from the opposite end of the cage.

3. In a valve. a valve casing, a plurality of removable trued seatplates, an opening provided in the valve casing for the insertion andremoval of the seat plates, a cap closing said opening. a cage providedwith a seat plate engaging shoulder at each end thereof, said capprovided with an inwardly projecting member cooperating with theshoulder on the adjacent end of the cage to retain a seat platetherebetween to compo-n sate for the removal of a seat plate from theother end of the cage.

at. In a valve, a valve casing a plurality of removable trued seatplates, an opening provided in the valve casing for the insertion andremoval of the seat plates, a cap closing said opening, a cage providedwith a seat plate engaging shoulder at each end thereof. said capprovided with an inturned iro'ecting member coo eratin with the l t. z:

shoulder on the adjacent end of the cage to retain the cage in positionand adapted to receive and retain a seat plate between the cap memberand the cage shoulder to compen- -.ate for the removal of a seat platefrom the other end of the cage.

EDlVABD MALLEY.

lVitnesses I. B. Fisonna, L. O. Swna'ramx.

